package com.power.oj.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.alibaba.fastjson.JSONObject;

public class TokenUtil
{

   private TokenUtil() {}
  /**
   * 参考自 qq sdk
   * 
   * @param @param string
   * @param @return 设定文件
   * @return String 返回类型
   * @throws
   */
  public static String getAccessToken(String string)
  {
    String accessToken = "";
    try
    {
      JSONObject json = JSONObject.parseObject(string);
      if (null != json)
      {
        accessToken = json.getString("access_token");
      }
    } catch (Exception e)
    {
      Matcher m = Pattern.compile("^access_token=(\\w+)&expires_in=(\\w+)&refresh_token=(\\w+)$").matcher(string);
      if (m.find())
      {
        accessToken = m.group(1);
      } else
      {
        Matcher m2 = Pattern.compile("^access_token=(\\w+)&expires_in=(\\w+)$").matcher(string);
        if (m2.find())
        {
          accessToken = m2.group(1);
        }
      }
    }
    return accessToken;
  }

  /**
   * 匹配openid
   * 
   * @param @param string
   * @param @return 设定文件
   * @return String 返回类型
   * @throws
   */
  public static String getOpenId(String string)
  {
    String openid = null;
    Matcher m = Pattern.compile("\"openid\"\\s*:\\s*\"(\\w+)\"").matcher(string);
    if (m.find())
    {
      openid = m.group(1);
    }
    return openid;
  }

  /**
   * sina uid于qq分离
   * 
   * @Title: getUid
   * @param @param string
   * @param @return 设定文件
   * @return String 返回类型
   * @throws
   */
  public static String getUid(String string)
  {
    JSONObject json = JSONObject.parseObject(string);
    return json.getString("uid");
  }
}
